Nutter. Posted June 19, 2017 Share Posted June 19, 2017 was out for a ride yesterday and bike cut on to 3 cylinders AA called out said coil has gone down ? any ideas as coils do 2 cylinders thanks in advance Quote Link to comment
370steve Posted June 19, 2017 Share Posted June 19, 2017 I would suspect either plug, plug cap or HT lead to affected cylinder. Quote Link to comment
teltwosheds Posted June 19, 2017 Share Posted June 19, 2017 Check yer carb may be crap in it. My bike has just dropped the same coil Quote Link to comment
wraith Posted June 19, 2017 Share Posted June 19, 2017 If you had a bad coil it would of gone down to 2 cylinders not 3. As said above, check plug, plug cap, ht lead. Always found AA/RAC to be OK with cars but they seem to be a bit lost with motorbikes 1 Quote Link to comment
Nutter. Posted June 20, 2017 Author Share Posted June 20, 2017 checked spark from coil last night plug sparks out of engine but bike fires on 3 when plug in engine 1 down pipe cold scratching head now any ideas Quote Link to comment
Nutter. Posted June 20, 2017 Author Share Posted June 20, 2017 AND NEW PLUGS FITTED Quote Link to comment
bluedog59 Posted June 20, 2017 Share Posted June 20, 2017 If you're getting a spark I'd be looking at fuel supply on that cylinder. One old trick you can try is to pour a TINY amount of fuel into the offending cylinder via the plug hole,replace the plug and start the engine. If it fires on all four for a moment, odd's on it's fuel. 1 Quote Link to comment
Nutter. Posted June 20, 2017 Author Share Posted June 20, 2017 THANKS BLUEDOG WILL TRY TONIGHT Quote Link to comment
CockneyRick Posted June 20, 2017 Share Posted June 20, 2017 Could be old plug breaking down under pressure, & new one is dodgy. Swap with No4 cylinder to make sure before stripping carbs 1 Quote Link to comment
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